In these latent infections, the TB bacterium may be dormant, only activating when someone's immune system is too weak to mount a defense.

在这些肺结核病菌携带者体内的结核杆菌可能处于休眠状态，只有在免疫力下降、抵抗力减弱时才会苏醒。

In these latent infections, the TB bacterium may be dormant, only activating when someone’s immune system is too weak to mount a defense.

在这些潜伏感染中， 结核菌可能处于休眠状态，只有当某人的免疫系统太弱而无法进行防御时才会激活。

Hep. A may not be a latent infection in the same way that toxoplasma is, but it is another part of the human experience of living in a world where we coexist with microorganisms.

A型肝炎或许不会像弓浆虫一样变成潜伏的疾病，但却是个人们和微生物共同生活在一起的好例子。

But these latent infections go on to sicken about one person in ten.